P
US11243232B2ActiveUtilityPatentIndex 38

Test apparatuses including probe card for testing semiconductor devices and operation methods thereof

Assignee: SAMSUNG ELECTRONICS CO LTDPriority: Jun 5, 2019Filed: Sep 30, 2019Granted: Feb 8, 2022
Est. expiryJun 5, 2039(~12.9 yrs left)· nominal 20-yr term from priority
Inventors:KIM GYUYEOLKIM YUKYUM
G01R 31/2886G01R 1/07342G01R 1/206G01R 31/31924G01R 31/2884G01R 31/31713G01R 1/07307G01R 31/2889G01R 1/0491G01R 31/31708G01R 31/31721G01R 31/31905
38
PatentIndex Score
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Cited by
22
References
18
Claims

Abstract

A probe apparatus includes a tester including a voltage supply, and a probe card including a first probe and a first sensing pin. The first probe is electrically connected to both an output port of the voltage supply and an electrode pad of a first semiconductor device. The first sensing pin is electrically connected to both a controller and a sensing pad of the first semiconductor device.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A test apparatus, comprising:
 a tester, the tester including a voltage supply and a controller; and 
 a probe card, the probe card including a first probe and a first sensing pin, 
 wherein the first probe is configured to be electrically connected to both an output port of the voltage supply and an electrode pad of a first semiconductor device, 
 wherein the first sensing pin is configured to be electrically connected to both the controller and a sensing pad of the first semiconductor device and is configured to sense a voltage of the first semiconductor device through the sensing pad and transmit the sensed voltage to the controller, 
 wherein the controller is electrically connected to both the voltage supply and the first sensing pin and is configured to
 cause the voltage supply to provide an initial voltage to the electrode pad of the first semiconductor device via the first probe, 
 receive the sensed voltage from the first sensing pin, 
 determine a difference between the initial voltage and the sensed voltage, 
 determine an adjustment of the initial voltage based on the determined difference to determine a corrected voltage, and 
 cause the voltage supply to provide the corrected voltage to the sensing pad of the first semiconductor device via the first sensing pin. 
 
 
     
     
       2. The test apparatus of  claim 1 , wherein
 the probe card further includes a first switch connected between the output port of the voltage supply and the first probe, and 
 the first switch is configured to control an electrical connection between the output port of the voltage supply and the first probe. 
 
     
     
       3. The test apparatus of  claim 2 , wherein:
 the probe card further includes a second switch connected between the controller and the first sensing pin, and 
 the second switch is configured to control an electrical connection between the controller and the first sensing pin. 
 
     
     
       4. The test apparatus of  claim 1 , wherein a positive input port of the voltage supply and a negative input port of the voltage supply are each electrically connected to the controller. 
     
     
       5. The test apparatus of  claim 1 , wherein the electrode pad of the first semiconductor device and the sensing pad of the first semiconductor device are directly connected to each other. 
     
     
       6. The test apparatus of  claim 1 , wherein the first sensing pin has a thickness greater than a thickness of each pin of a plurality of pins of the first probe. 
     
     
       7. The test apparatus of  claim 1 , wherein
 the probe card further includes a second probe and a second sensing pin, 
 the second probe is configured to be electrically connected to both the output port of the voltage supply and an electrode pad of a second semiconductor device, and 
 the second sensing pin is configured to be electrically connected to both the controller and a sensing pad of the second semiconductor device. 
 
     
     
       8. The test apparatus of  claim 7 , wherein
 the probe card further includes a switch connected between the controller and the first and second sensing pins, 
 one end of the switch is connected to the controller and another end of the switch is connected to both the first sensing pin and the second sensing pin, and 
 the switch is configured to control an electrical connection between the controller and the first and second sensing pins. 
 
     
     
       9. A test apparatus, comprising:
 a tester, the tester including a first voltage supply, a second voltage supply, and a controller; and 
 a probe card, the probe card including a first probe, a second probe, a first sensing pin, and a second sensing pin, 
 wherein the first probe is configured to be electrically connected to both an output port of the first voltage supply and a first electrode pad of a first semiconductor device, 
 wherein the first sensing pin is configured to be electrically connected to both the controller and a first sensing pad of the first semiconductor device and is configured to sense a voltage of the first semiconductor device through the first sensing pad and transmit the sensed voltage to the controller, 
 wherein the controller is electrically connected to both the first voltage supply said the first sensing pin and is eon figured to
 cause the first voltage supply to provide an initial voltage to the first electrode pad of the first semiconductor device via the first probe, 
 receive the sensed voltage from the first sensing pin, 
 determine a difference between the initial voltage and the sensed voltage, 
 determine an adjustment of the initial voltage based on the determined difference to determine a corrected voltage, and 
 cause the first voltage supply to provide the corrected voltage to the first sensing pad of the first semiconductor device via the first sensing pin, 
 
 wherein the second probe is configured to be electrically connected to both an output port of the second voltage supply and a second electrode pad of the first semiconductor device, 
 wherein the second sensing pin is configured to be electrically connected to both the controller and a second sensing pad of the first semiconductor device. 
 
     
     
       10. The test apparatus of  claim 9 , wherein the controller includes a first controller and a second controller, and
 the first sensing pin is configured to electrically connected to the first controller, and the second sensing pin is configured to electrically connected to the second controller. 
 
     
     
       11. The test apparatus of  claim 10 , wherein
 the probe card further includes a third probe, a fourth probe, a third sensing pin, and a fourth sensing pin, 
 the third probe is configured to be electrically connected to both the output port of the first voltage supply and a third electrode pad of a second semiconductor device, 
 the third sensing pin is configured to be electrically connected to both the first controller and a third sensing pad of the second semiconductor device, 
 the fourth probe is configured to be electrically connected to both the output port of the second voltage supply and a fourth electrode pad of the second semiconductor device, and 
 the fourth sensing pin is configured to be electrically connected to both the second controller and a fourth sensing pad of the second semiconductor device. 
 
     
     
       12. The test apparatus of  claim 11 , wherein the probe card further includes a first switch and a second switch, and
 wherein the first switch is connected between the output port of the first voltage supply and one end of the first probe, and 
 wherein the second switch is connected between the output port of the first voltage supply and one end of the third probe. 
 
     
     
       13. A probe card, comprising:
 a first probe; 
 a first sensing pin; 
 a second sensing pin; 
 a first repeater connected between an output port of a first voltage supply of a tester and the first probe; and 
 a second repeater connected between a first controller and the first sensing pin, 
 wherein the first probe is configured to be electrically connected to the output port of the first voltage supply of the tester, and a first electrode pad of a first semiconductor device, 
 wherein the first sensing pin is configured to be electrically connected to both the first, controller of the tester and a first sensing pad of the first semiconductor device, 
 wherein the second sensing pin is configured to be electrically connected to a second sensing pad of the first semiconductor device. 
 
     
     
       14. The probe card of  claim 13 , further including a third repeater connected between the first controller and the second sensing pin. 
     
     
       15. The probe card of  claim 13 , further including:
 a second probe; 
 a third sensing pin; and 
 a fourth sensing pin, 
 wherein: 
 the second sensing pin is configured to be electrically connected to both a second controller and the second sensing pad of the first semiconductor device, 
 the second probe is configured to be electrically connected to both an output port of a second voltage supply of the tester and a second electrode pad of a second semiconductor device, 
 the third sensing pin is configured to be electrically connected to both the first controller and a third sensing pad of the second semiconductor device, and 
 the fourth sensing pin is configured to be electrically connected to both the second controller and a fourth sensing pad of the second semiconductor device. 
 
     
     
       16. The probe card of  claim 15 , further including a third repeater connected between the output port of the second voltage supply and the second probe. 
     
     
       17. The probe card of  claim 15 , further including a third repeater connected between the first controller and the third sensing pad of the second semiconductor device. 
     
     
       18. The probe card of  claim 15 , further including a third repeater connected between the second controller and the fourth sensing pad of the second semiconductor device.

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